'use strict';
var $ = require('../internals/export');
var flattenIntoArray = require('../internals/flatten-into-array');
+var aCallable = require('../internals/a-callable');
var toObject = require('../internals/to-object');
-var toLength = require('../internals/to-length');
-var aFunction = require('../internals/a-function');
+var lengthOfArrayLike = require('../internals/length-of-array-like');
var arraySpeciesCreate = require('../internals/array-species-create');
// `Array.prototype.flatMap` method
$({ target: 'Array', proto: true }, {
flatMap: function flatMap(callbackfn /* , thisArg */) {
var O = toObject(this);
- var sourceLen = toLength(O.length);
+ var sourceLen = lengthOfArrayLike(O);
var A;
- aFunction(callbackfn);
+ aCallable(callbackfn);
A = arraySpeciesCreate(O, 0);
A.length = flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
return A;